SISTERS SOURDOUGH STARTER

This is my sister’s recipe for sourdough starter. I don’t know if it’s the same or not as the ones previously posted.
3/4 cup sugar
3 Tablespoons Instant Potato Flakes
1 pkg. active dry yeast
1 cup warm water (120-130 degrees)
Combine first three ingredients in a small mixing bowl. Stir in warm water. Cover with plastic wrap & pierce 3-5 times. Let set out for 8 hrs. and then put in fridge for 3-5 days.
When ready to make bread, refeed as above & let set out 8-12 hours and then take away 1 cup to make bread & put remaining starter in fridge again for 3-5 days.